![background image](http://html1.mh-extra.com/html/abb/relion-670-series/relion-670-series_applications-manual_3052129591.webp)
QB1OPTR (bay 1/sect.A1)
BB_DC_OP
VP_BB_DC
EXDU_BB
en04000506.vsd
QB1OPTR (bay n/sect.A1)
. . .
. . .
. . .
VPQB1TR (bay 1/sect.A1)
VPQB1TR (bay n/sect.A1)
VPDCTR (A1/A2)
EXDU_BB (bay n/sect.A1)
. . .
. . .
. . .
. . .
. . .
. . .
&
&
&
DCOPTR (A1/A2)
EXDU_BB (bay 1/sect.A1)
EXDU_DC (A1/A2)
IEC04000506 V1 EN-US
Figure 361: Signals from any bays in section A1 to a busbar earthing switch in the same
section
For a busbar earthing switch, these conditions from the A2 busbar section are valid:
QB1OPTR (bay 1/sect.A2)
BB_DC_OP
VP_BB_DC
EXDU_BB
en04000507.vsd
QB1OPTR (bay n/sect.A2)
. . .
. . .
. . .
VPQB1TR (bay 1/sect.A2)
VPQB1TR (bay n/sect.A2)
VPDCTR (A1/A2)
EXDU_BB (bay n/sect.A2)
. . .
. . .
. . .
. . .
. . .
. . .
&
&
&
DCOPTR (A1/A2)
EXDU_BB (bay 1/sect.A2)
EXDU_DC (A1/A2)
IEC04000507 V1 EN-US
Figure 362: Signals from any bays in section A2 to a busbar earthing switch in the same
section
For a busbar earthing switch, these conditions from the B1 busbar section are valid:
1MRK 505 343-UEN B
Section 14
Control
585
Application manual
Summary of Contents for Relion 670 series
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